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Period
OperaMon
2.4
(1)
Sef the
POWER
switch
to
ON.
(2)
Set the following controls:-
(a)
Function switch
to
PERIOD
'A'.
(b)
AC/DC
switch
to
AC
or
DC,
as
required.
(c)
If
using
AC
mode,
set
the
SENSITIVITY
control
initially
to
maximum
clockwise.
(d)
PULSE/CONTACT
switch
to
PULSE
(JT).
(e)
CHECK/OPERATE
switch
^o
O
PERATE
.
(f)
HOLD/NORMAL
switch
to
NORMAL.
(3)
Connect
the
unknown
signal to the
'A'
input socket.
(4)
Select the
number
of periods
to
be
timed,
by
depressing the relevant
Range
('n')
push-button.
A
greater
number
of periods gives increased resolution, but
longer
measuring time.
(5)
Adjust
the
SENSITIVITY
control
anticlockwise
to
obtain steady counting.
This control
is
useful
in
filtering
out h.f. interference
on low frequency
measurements
.
(6)
If
operating on
HOLD
press
and
release the
RESET
button
to
obtain a
new
reading.
2-2
9901
Vol.2
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